diff --git a/GPU/Common/DepalettizeShaderCommon.cpp b/GPU/Common/DepalettizeShaderCommon.cpp
index cd6296a99b..6b81322a42 100644
--- a/GPU/Common/DepalettizeShaderCommon.cpp
+++ b/GPU/Common/DepalettizeShaderCommon.cpp
@@ -106,6 +106,10 @@ void GenerateDepalShader300(ShaderWriter &writer, const DepalConfig &config) {
 		writer.C("  int index = (b << 11) | (g << 5) | (r);\n");
 		break;
 	case GE_FORMAT_5551:
+		if (config.textureFormat == GE_TFMT_CLUT8) {
+			// SOCOM case. We need to make sure the next few lines load the right bits, see below.
+			shiftedMask <<= 8;
+		}
 		if (shiftedMask & 0x1F) writer.C("  int r = int(color.r * 31.99);\n"); else writer.C("  int r = 0;\n");
 		if (shiftedMask & 0x3E0) writer.C("  int g = int(color.g * 31.99);\n"); else writer.C("  int g = 0;\n");
 		if (shiftedMask & 0x7C00) writer.C("  int b = int(color.b * 31.99);\n"); else writer.C("  int b = 0;\n");
@@ -245,7 +249,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
 		break;
 	case GE_FORMAT_5551:
 		if (config.textureFormat == GE_TFMT_CLUT8 && mask == 0xFF && shift == 0) {
-			sprintf(lookupMethod, "index.b * 64.0 + index.g * 4.0");  // we just skip A.
+			sprintf(lookupMethod, "index.a * 128.0 + index.b * 64.0 + index.g * 4.0");  // we just skip A.
 			index_multiplier = 1.0f / 256.0f;
 			// SOCOM case. #16210
 		} else if ((mask & (mask + 1)) == 0 && shift < 16) {